The MagickWand interface is a new high-level C API interface to ImageMagick core methods. We discourage the use of the core methods and encourage the use of this API instead. Post MagickWand questions, bug reports, and suggestions to this forum.

s.png and t.png (the two output files) show different images. Furthermore, they have different file sizes (s.png is 2.54 KB and t.png is 3.12 KB). I verified that the file contents are the same as the contents of the string above, so any idea what's going on? I originally posted this on the Wand's Github page but was referred here.
Thanks